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Finding the Third Proportional to 136,306.13 and 206,911.69

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Solution

The third proportional to 136,306.13 and 206,911.69 is: 314,090.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,306.13 : 206,911.69 = 206,911.69 : x
  2. Step 2: Convert to fraction form
    136,306.13/206,911.69 = 206,911.69/x
  3. Step 3: Cross multiply
    136,306.13x = 206,911.69 × 206,911.69
  4. Step 4: Simplify right side
    136,306.13x = 42,812,446,424.10
  5. Step 5: Solve for x
    x = 42,812,446,424.10/136,306.13
  6. Step 6: Final answer
    x = 314,090.41

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.